2205840

Names of 2205840

• Cardinal: 2205840 can be written as Two million, two hundred five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.20584 × 10⁶

Factors of 2205840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 131

Divisors of 2205840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 35 39 40 42 48 52 56 60 65 70 78 80 84 91 101 104 105 112 120 130 140 156 168 182 195 202 208 210 240 260 273 280 303 312 336 364 390 404 420 455 505 520 546 560 606 624 707 728 780 808 840 910 1010 1040 1092 1212 1313 1365 1414 1456 1515 1560 1616 1680 1820 2020 2121 2184 2424 2626 2730 2828 3030 3120 3535 3640 3939 4040 4242 4368 4848 5252 5460 5656 6060 6565 7070 7280 7878 8080 8484 9191 10504 10605 10920 11312 12120 13130 14140 15756 16968 18382 19695 21008 21210 21840 24240 26260 27573 28280 31512 33936 36764 39390 42420 45955 52520 55146 56560 63024 73528 78780 84840 91910 105040 110292 137865 147056 157560 169680 183820 220584 275730 315120 367640 441168 551460 735280 1102920 2205840
• Sum of all divisors σ(n): 8499456
• Sum of proper divisors (its aliquot sum) s(n): 6293616
• 2205840 is an abundant number, because the sum of its proper divisors (6293616) is greater than itself. Its abundance is 4087776

Bases of 2205840

• Binary: 1000011010100010010000₂
• Hexadecimal: 0x21A890
• Base-36: 1BA1C

Squares and roots of 2205840

• 2205840 squared (2205840²) is 4865730105600
• 2205840 cubed (2205840³) is 10733022096136704000
• The square root of 2205840 is 1485.2070562719
• The cube root of 2205840 is 130.1741256411

Scales and comparisons

• 2,205,840 seconds is equal to 3 weeks, 4 days, 12 hours, 44 minutes.
• To count from 1 to 2,205,840 would take you about five weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 2205840 cubic inches would be around 10.8 feet tall.

Recreational maths with 2205840

• 2205840 backwards is 0485022
• 2205840 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 2205840's digits is 21
• More coming soon!